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Created attachment 503386 [details] first screenshot, showing the effect of gnome not using the right hand side of screen. Description of problem: See screen shot - gnome 3 fallback mode does not use right-area of ~50 pixels. (note top/bottom panels extend to end of screen but the middle area does not). Version-Release number of selected component (if applicable): Up to date F15, $ rpm -q gnome-session gnome-session-3.0.1-2.fc15.x86_64 How reproducible: Always Steps to Reproduce: 1. Just go into fallback mode. 2. run screenshot program. 3. Actual results: The right area of ~50 pixels is not used. Expected results: Use the whole dislay. Additional info: Note that the top/bottom panels extends to edge, just the middle area is not. Also maximized window (or newly launched window) only extend to the used area and not the whole display. (see 2nd screenshot, where I maximize this window as I type it).
Created attachment 503388 [details] Another screenshot showing the problem for maximized windows This is a screenshot on an maximized window. (the bug filing firefox). This seems to suggest that the window manager is not telling clients the correct useable area?
I am running metacity as windows manager. Compiz seems to be quite buggy - quite a few common non-gnome applications (konqueror, Terminal (from Terminal-0.4.7-1.fc15.x86_64)) seem to be able to crash the gnome session. Please feel free to fill this under a different component - I am filing under gnome-session because I cannot think of a better place. This does not seem to be a hardware problem - as the top/bottom panels can extend to the end of the physical screen, just the middle workspace isn't.
Created attachment 503557 [details] desktop screenshot with a different gnome theme Tweaking gnome theme with tweak-gnome-tool resulting in the not-used area painted the theme color, suggesting that this is a software bug (of mis-calculating the useable workspace?) rather than hardware/driver problem.
After suffering the problem for almost 5 weeks (and logged out/in, rebooted many times) and reading many things about gnome-shell, on a hunch, I thought the unused area looks like an extra notification/panel area which is entirely empty and unpopulated. So I tried ALT-right-click on it. Lord and behold, various things happened everywhere the entire desktop - some of the maximized windows enlarged, etc So the problem disappeared after I ALT-right-click on that area. I don't know if it is possible to have a side-way-panel/notification area in gnome-shell, but seeing as this looks like a gnome-shell confusion bug, I am re-assigning to gnome-shell, and closing it.